Varun Saxena commented on YARN-2437:

We can although read the ${CONFIG_DIR}/slaves file and get a list of slaves. 
Currently slaves file is read(contents not printed) in hadoop_connect_to_hosts 
function in hadoop-functions.sh
We can read it in yarn-daemons.sh too, if the file exists to provide hosts info.

> start-yarn.sh/stop-yarn should give info
> ----------------------------------------
>                 Key: YARN-2437
>                 URL: https://issues.apache.org/jira/browse/YARN-2437
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: scripts
>            Reporter: Allen Wittenauer
>            Assignee: Varun Saxena
>              Labels: newbie
>             Fix For: 2.7.0
>         Attachments: YARN-2437.001.patch, YARN-2437.patch
> With the merger and cleanup of the daemon launch code, yarn-daemons.sh no 
> longer prints "Starting" information.  This should be made more of an analog 
> of start-dfs.sh/stop-dfs.sh.

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